# 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster ##### **Enhanced 3G & Voice** Experience superior communication with our 3G & Calls booster, designed to amplify signals on 900MHz and 2100MHz frequencies. Compatible with Oi and Algar, this device ensures crystal-clear voice calls and reliable data connectivity, eliminating interruptions. ##### **Powerful Coverage** Cover an expansive area of up to 500m², making it ideal for medium-sized homes, offices, and warehouses. Enjoy strong and consistent signals throughout your space, ensuring seamless connectivity regardless of where you are inside. ##### **Easy Installation** Get started instantly with a complete kit that includes all necessary components for installation—an external antenna, cables, call booster unit, and internal antenna, all bundled at a single price for your convenience. ##### **Simultaneous Band Support** Our Dual Band technology allows simultaneous operation on both 900MHz and 2100MHz frequencies. This means you and your family can enjoy uninterrupted connections across different mobile networks—perfect for households with multiple service providers. ##### **Lightning Surge Protection** Safeguard your equipment with the optional Lightning Surge Protector, engineered to defend against high amperage surges from lightning strikes. Protect your investment effortlessly while ensuring reliable long-term performance. Upgradable Components Optimize your signal boosting experience by upgrading to higher gain antennas or longer external cables. Tailor your setup to meet your specific needs and boost performance, ensuring the best signal strength for your devices. It boost **3G and Calls** signal on 900MHz, 2100MHz frequencies, the frequencies used in **Brazil** used by mobile networks to deliver their mobile services: 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 2G. It work on both 900Mhz (Band 8) & 2100Mhz (Band 1) frequencies mainly used for improving Oi and Algar mobile carrier networks **3G, Voice Calls and Text** signal. It is a high-performance booster, boost indoor signal cover an area up to **500 m2**, perfect for medium houses, offices, warehouse and more. The booster enhances cell signals is a low-cost amplifier that wirelessly enhances cell signals for cellular devices (smartphones, tablets, Kindle, etc). It provides stronger signals, longer battery life, and clear connections to your phone. This device will boost mobile providers' 2G 900MHz, and 3G 2100MHz (Band 8/1) network signal. This system is compatible with all 3G mobile phone networks, will provide coverage on both 900MHz, 2100MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks! * * * **Wow 3G Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 3G Data **Send/Receive SMS** SMS Text Messages Quickly **3G Internet** Faster Uploads & Downloads **Signal Wider Coverage** Reception Up to 500 sq.m. * * * ### Upgrade External Cables If our standard package 10 meter external cable length is not enough to cover your area you have an upgrade option. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal cables](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Cable.jpg?v=1693125491) * * * ### Upgrade External Aerial Higher Gain Yagi Antenna - For better performance it's a must if indoor your phone with 1/2 signal bars. Or get this upgrade if outdoor best signal strength in the following range: 2G (GSM) -76 to -90 dBm 3G (UMTS) -80 to -94 dBm 4G (LTE) -97 to -105 dBm How to shown dBm reading on phone? Check [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide) ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal higher gain yagi antenna](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHigherGainYagiAntenna.webp?v=1600640184) * * * ### Upgrade Protector Lightning Surge Protector - Designed to Protect your equipment from high amperage surges due to lightning strikes on aerials or masts in close proximity to the device. This unit is rated for 18KA of current surge and is very simple to install on any device. ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184) * * * ### Specification (scroll to view all) Application & Bands \[3G Data and Voice Calls\] (Band 8, 1) Country Brazil **Boost All On** Oi (3G & 2G) Algar (3G & 2G) Users Supporting 50 Simultaneously Band Dual Band 8 & 1 Frequency 900 & 2100MHz Gain(dB) Gp≥60; Downlink Gp≥65 Up-link 890~915 MHz; 1930~1990 MHz Down-link 935~960 MHz; 2110~2180 MHz Export Power(Po) ≥20dBm Power Adapter Input: AC 100V~240V 50/60Hz Output: DC 5V Kit Includes 1 x Booster 1 x Outdoor Antenna 1 x Indoor Antenna 1 x Power Adapter 1 x 10 Meters Outdoor Cable 1 x 5 Meters Indoor Cable **Warming Tips:** - Band Confirmation: This booster can boost signals on Band 8, or Band 1, please check the band of your devices firstly. - For iPhone: Dial \*3001#12345#\* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'. - For Android: Download 'LTE Discovery' APP → Click ‘SIGNALS’ → Check 'EARFCN'. More refer to [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide) . - External Signal Needed: The signal booster can only amplify signal but can't create signal. If there is no signal outside, it won't work, please make sure you get 1-2 bars signal outside. ### Custom your solution #### **Expandable coverage by adding indoor antenna if the outside signal is strong.** ![UK Mobile Booster Expand Cell Coverage with 3 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-3-Indoor-Antenna.png?v=1700361963) ### **How It Works** ![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWhomeoffice-2.webp?v=1650634397) #### 1 **Receives signal** The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster #### 2 **Boosts signal** The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower. #### 3 **Broadcasts signal** Your devices get increased cell reception, and calls and data are fed through the booster back to the network. #### **Get stronger signal** ![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagenormalcoverage-2.webp?v=1650634397) #### Normal Cell Coverage Dropped calls and slow data are generally caused by three things: distance from a cell tower, building materials in your home or office, or obstruction from tall objects such as trees, topography, and buildings. ![how 4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageboostedcoverage-2.webp?v=1650634397) #### Signal Coverage with our booster Signal boosters increase cell signal by collecting signals with a powerful antenna, delivering those signals to the booster, amplifying the cell signals so your devices receive them, and delivering your device's boosted signals back to the cell tower. #### **Installation** 1. Connect the indoor antenna to the MS port. 2. Connect the outdoor antenna to the BS Port. 3. Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna. 4. Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station. 5. Power on the booster and check the signal strength. 6. Adjust the outdoor antenna until you get the best signal strength. **IMPORTANT NOTE**: DO NOT POWER ON THE DEVICE UNTIL YOU HAVE COMPLETED THIS SETUP. Read more about [User Manual Documentation.](https://drive.google.com/file/d/1Uch5legGJsKTzLO9PTGpgsKEnZGEq7TH/view) ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834) ### **Application Scenarios** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834) **Home** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832) **Office** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834) **Garage** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834) **Metal Buildings** 1. What is the purpose of the 3G & Calls - 500m2 Cell Phone Signal Booster? - The 3G & Calls - 500m2 Cell Phone Signal Booster improves your mobile signal for calls, text messages, and 3G internet. It's especially important in places where the signal from your mobile carrier might be weak. This device boosts the signal indoors so you can enjoy clearer conversations and faster internet speeds. 2. How does the signal booster work? - The signal booster takes the weak signal from outside and amplifies it so that your smartphone or tablet can connect better. It works on two frequency bands: 900MHz and 2100MHz, which are commonly used by mobile carriers in Brazil. This means it can help improve service for different networks like Oi and Algar. 3. How large of an area can the booster cover? - This booster can cover an area of up to 500 square meters, making it ideal for medium-sized homes, offices, or warehouses. This way, more people can benefit from a stronger mobile signal at the same time. 4. Will the booster work with all smartphones? - Yes, the 3G & Calls signal booster is compatible with all mobile phones that work on 3G networks. This includes well-known brands and older models. Just make sure your phone operates on the 900MHz or 2100MHz frequency. 5. What if I have no signal outside? - The signal booster only works if there is a weak signal to start with. If there’s no signal at all in your area, the booster won’t help. It can only amplify existing signals, so you need a bit of outside signal first. 6. How do I install the booster? - The booster kit comes with all the pieces you need for installation, such as antennas and cables. It’s designed to be easy to set up. You simply place the external antenna outside where it can pick up a signal and connect it to the booster inside your home. 7. What are the extra features of this signal booster? - This booster not only improves your call quality but also helps in sending and receiving text messages faster. With it, you will experience less drop in calls and enjoy reliable 3G internet for quicker uploads and downloads. 8. What do I do if I need a longer cable? - If the standard 10-meter external cable isn’t long enough for your setup, you have the option to upgrade to a longer cable. This allows you to position the external antenna in a place where it can get the best signal. 9. Can I upgrade my antenna for better performance? - Yes, you can upgrade to a higher gain Yagi antenna. This is particularly helpful if your indoor phone shows weak signal bars. A better antenna can significantly improve the strength and quality of your signal. 10. How can I protect my signal booster from surges? - You can add a lightning surge protector to your booster setup. It helps to shield your equipment from electrical surges caused by lightning, ensuring that your device remains safe and functional at all times. TAGES: 3G signal booster, cell phone signal amplifiers, Oi mobile network, Algar mobile network, indoor signal improvement, dual band booster, signal coverage 500m2, enhance voice calls ## Details - **Price:** 365.49 GBP - 485.49 GBP - **Vendor:** UKMobileBooster.com - **Type:** Brazil - **Tags:** application 3G Data & Voice Calls, br br, coverage up to 500 sq metres, has_stock_countdown, provider Algar, provider Oi ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 365.49 GBP | In stock | | No / No / Yes | 385.49 GBP | In stock | | No / Yes / No | 415.49 GBP | In stock | | No / Yes / Yes | 435.49 GBP | In stock | | 20 M / No / No | 385.49 GBP | In stock | | 20 M / No / Yes | 405.49 GBP | In stock | | 20 M / Yes / No | 435.49 GBP | In stock | | 20 M / Yes / Yes | 455.49 GBP | In stock | | 30 M / No / No | 395.49 GBP | In stock | | 30 M / No / Yes | 415.49 GBP | In stock | | 30 M / Yes / No | 445.49 GBP | In stock | | 30 M / Yes / Yes | 465.49 GBP | In stock | | 40 M / No / No | 405.49 GBP | In stock | | 40 M / No / Yes | 425.49 GBP | In stock | | 40 M / Yes / No | 455.49 GBP | In stock | | 40 M / Yes / Yes | 475.49 GBP | In stock | | 50 M / No / No | 415.49 GBP | In stock | | 50 M / No / Yes | 435.49 GBP | In stock | | 50 M / Yes / No | 465.49 GBP | In stock | | 50 M / Yes / Yes | 485.49 GBP | In stock | ## Images - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster - 3G & Calls - 500m2 (Oi/Algar) Cell Phone Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/br-gw500-mobile-booster) > Updated: 2026-09-02